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GeezerVison is showing github.com — ReClass.NET/NativeCore/Unix/EnumerateProcesses.cpp at master · ReClassNET/ReClass.NET

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EnumerateProcesses.cpp

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#include <iostream>
#include <string>
#include <sstream>
#include <fstream>
#include <experimental/filesystem>
#include "NativeCore.hpp"
namespace fs = std::experimental::filesystem;
// std::filesystem library doesn't work @Ubuntu 16.10, read_symlink() always fails.
#define USE_CUSTOM_READ_SYMLINK
#ifdef USE_CUSTOM_READ_SYMLINK
#include <unistd.h>
fs::path my_read_symlink(const fs::path& p, std::error_code& ec)
{
fs::path symlink_path;
std::string temp(64, '\0');
for (;; temp.resize(temp.size() * 2))
{
ssize_t result;
if ((result = ::readlink(p.c_str(), /*temp.data()*/ &temp[0], temp.size())) == -1)
{
ec.assign(errno, std::system_category());
break;
}
else
{
if (result != static_cast<ssize_t>(temp.size()))
{
symlink_path = fs::path(std::string(temp.begin(), temp.begin() + result));
ec.clear();
break;
}
}
}
return symlink_path;
}
#endif
enum class Platform
{
Unknown,
X86,
X64
};
Platform GetProcessPlatform(const std::string& auxvPath)
{
auto platform = Platform::Unknown;
std::ifstream file(auxvPath);
if (file)
{
char buffer[16];
while (true)
{
file.read(buffer, 16);
if (!file)
{
return Platform::X64;
}
if (buffer[4] != 0 || buffer[5] != 0 || buffer[6] != 0 || buffer[7] != 0)
{
return Platform::X86;
}
}
}
return platform;
}
extern "C" void RC_CallConv EnumerateProcesses(EnumerateProcessCallback callbackProcess)
{
if (callbackProcess == nullptr)
{
return;
}
fs::path procPath("/proc");
if (fs::is_directory(procPath))
{
for (auto& d : fs::directory_iterator(procPath))
{
if (fs::is_directory(d))
{
auto processPath = d.path();
auto name = processPath.filename().string();
if (is_number(name))
{
auto exeSymLink = processPath / "exe";
if (fs::is_symlink(fs::symlink_status(exeSymLink)))
{
std::error_code ec;
auto linkPath =
#ifdef USE_CUSTOM_READ_SYMLINK
my_read_symlink
#else
read_symlink
#endif
(exeSymLink, ec).string();
if (!ec)
{
auto auxvPath = processPath / "auxv";
auto platform = GetProcessPlatform(auxvPath.string());
#ifdef RECLASSNET64
if (platform == Platform::X64)
#else
if (platform == Platform::X86)
#endif
{
EnumerateProcessData data = {};
data.Id = parse_type<size_t>(name);
MultiByteToUnicode(linkPath.c_str(), data.Path, PATH_MAXIMUM_LENGTH);
const auto name = fs::path(data.Path).filename().u16string();
str16cpy(data.Name, name.c_str(), std::min<int>(name.length(), PATH_MAXIMUM_LENGTH - 1));
callbackProcess(&data);
}
}
}
}
}
}
}
}
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